Magnesium: The Fitness Mineral

According to Dr. Carolyn Dean in The Magnesium Miracle, “Even though most athletes and coaches don’t know it, magnesium is one of the most important nutrients athletes can possibly take.” (Kindle version, page 2096).

Whether you’re a dedicated athlete, or you exercise purely for fitness, magnesium can make all the difference in your performance and endurance.

Here are the Four Things You Need to Know About Magnesium and Exercise, taken from Dean’s definitive tome:

  1. Without enough magnesium, your body can’t produce the energy it needs to exercise;
  2. Exercise-induced muscle pain comes from lactic acid. Magnesium neutralizes lactic acid;
  3. Exercise depletes magnesium stores, which is why active people may need more magnesium;
  4. Magnesium deficiency may cause sudden cardiac death in otherwise healthy people who exercise.

Unfortunately, many people are fueling their workouts with ‘performance enhancers’ that actually deplete magnesium, including:

  • Caffeine;
  • Sugar and sodium in sports drinks, sports gels, sports bars;
  • Protein bars and shakes loaded with calcium.

It’s a vicious cycle: the more you starve your body of magnesium, the more help you’ll need to sustain a high level of activity. If you turn to caffeine and the wrong kind of sports supplements, your magnesium levels will plummet further.

Over the next four posts we’ll take a deeper dive into how magnesium can give you more energy and reduce exercise-related pain. We’ll also look at why overlooking magnesium can put active people at risk for chronic and acute symptoms of magnesium deficiency.

Stay with us! And while you wait for the next installment, we would love for you to share this post. Get the message out to the athletes and would-be athletes in your life.

  • Do you know someone who would love to workout, but just can’t find the energy? They may be magnesium deficient.
  • Do you know someone who subscribes to the ‘no pain, no gain’ school, and lives with persistent, exercise-related pain? Tell them about magnesium and lactic acid.
  • Do you know someone who treats their body like a temple in the gym, but goes slumming when it’s time to fuel up? Let them know what a magnesium-poor diet is doing to their workout.

Thanks for helping us get the word out! Most Canadian adults are deficient in magnesium, so it’s a message nearly everyone needs to hear.


Carolyn Dean, MD, ND. The Magnesium Miracle (Updated and Revised).

Our Pure Topical Magnesium Products​

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